Hi Rick,
I am fitting a restricted cubic spline using proc phreg using the effect statement, see below. My question is when you use the baseline statement to predicted survival at certain time point for different values of the variable dpgfr3m, does below work if the covariate included in the model is spl? the dataset cox1_temp has value for dpgfr3m and not spl

proc phreg data=resample_treated;
effect spl=spline(dpgfr3m/details naturalcubic basis=tpf(noint) knotmethod=percentilelist(5 27.5 50 72.5 95));
model v1_fu_d*v1_ev_d(0)=spl;
baseline covariates=cox1_temp out=cox1_temp1 survival=surv1 timelist=12 24 36 48;
by replicate;
run;